Dr. Dobb's Tcl-URL! - weekly Tcl news and links (Jun 8)
John Seal
handling should be looked upon as a bonus, in that the event loop is far
simpler to handle than threading models." -- Melissa Schrumpf
"Today at work I was asked to do some very specific (and thought by
management to be difficult to impossible) tasks which were one-liners in
tcl." -- Gordon Johnstone
POTW: Notebook v2.0.3 by Will Duquette. "Notebook is a personal notebook
application." "If you've ever used a Wiki on the Web, Notebook is much
like a personal Wiki. But it goes beyond that, because it's programmable."
http://www.wjduquette.com/notebook/index.html
If your non-blocking pipe (or other channel) is still blocking
when closed, you should be aware of these issues:
http://groups.google.com/groups?th=700806cd0bb68d9c
An amusing misconception that Tcl/Tk is owned by General
Dynamics leads to a most enlightening post by Kevin Kenny
about the DoD clause in the Tcl/Tk license:
http://groups.google.com/groups?th=e760b2d43fab4079
http://groups.google.com/groups?th=c55bb4fa53d472bd
Want to scroll a text widget by pixels in Tcl/Tk <8.5? Aric Bills
shows how to put a procedure between the scrollbar and the
widget to redefine what constitutes a "unit" and a "page":
http://groups.google.com/groups?th=ddb0da0cee272be0
Does [canvas] need a "absolute" move in addition to the
"incremental" move it already has?
http://groups.google.com/groups?th=347a3a89c58cc0b4
Thanks to Arjen Markus for his summary of Wiki activity:
A surprising number of pages dealing with widgets and user-interface
techniques, a few philosophical and algorithmic pages and a couple
of other things: here is your weekly digest of the Tcler's Wiki.
Listboxes:
- A listbox that can be as big as you like, without having all its
entries in memory ... <http://wiki.tcl.tk/10035>
- Just about the tiniest package for dealing with multicolumn
listboxes - try <http://wiki.tcl.tk/11762>
Other GUI techniques:
- Moving a transparant window around - <http://wiki.tcl.tk/4031>
- Overwriting text in an entry widget - <http://wiki.tcl.tk/9416>
Philosopical musings:
- The purpose of starkits explained: does it make sense to wrap
an application that consists of a single file only?
<http://wiki.tcl.tk/11767>
- Do not rely on regular expressions when you need to parse
such complicated textual constructs as XML, HTML, ...
<http://wiki.tcl.tk/4164>
- The design of a simple and robust text-like widget? Plenty
of questions left and help appreciated, <http://wiki.tcl.tk/11577>
Algorithmic ponderings:
- Generate an XML file piece by piece - <http://wiki.tcl.tk/11641>
- You have a list and a second, smaller list that just might be in
the first one. But where? Straightforward and more algorithmically
advanced solutions at <http://wiki.tcl.tk/11622>
- Your chronicler is very proud of this page: a "general" equation
solver, <http://wiki.tcl.tk/11617>
The periphery:
- A one-floppy distribution of Tcl applications for a tiny Linux
distro - <http://wiki.tcl.tk/3022>
- Perhaps not all there is to know about writing "eggdrop scripts"
but useful pointers anyway - <http://wiki.tcl.tk/2235>
Everything Tcl-related you want is probably one or two clicks away in these
pages:
The "Welcome to comp.lang.tcl" message by Andreas Kupries
http://www.purl.org/net/tcl-welcome
The Tcl Developer Site is Tcl's "home base".
http://www.tcl.tk
The Eleventh Mostly-Annual Tcl Conference will be this October.
http://www.tcl.tk/community/tcl2004/
Larry Virden maintains a comp.lang.tcl FAQ launcher
http://www.purl.org/NET/Tcl-FAQ/
The Tcl Developer Xchange is a highly organized resource center
of documents and software with provisions for individuals to
maintain references to their own software:
http://www.tcl.tk/resource/
The TDX sponsor, ActiveState, also keeps info to convince your
boss Tcl is a good thing
http://www.tcl.tk/scripting/
The Tcl'ers Wiki is a huge, dynamic, collaboratively edited repository
of documentation, examples, tutorials and pontifications on all things
Tcl.
http://wiki.tcl.tk/0
For the ideal overview of the topics about Tcl most likely to
interest a newcomer, see "Arts and Crafts ..."
http://wiki.tcl.tk/969
ActiveState maintains binaries distribution and development tools
http://www.activestate.com/Tcl
along with a Cookbook of Tcl recipes
http://aspn.activestate.com/ASPN/Cookbook/Tcl
Cameron Laird tracks several Tcl/Tk references of interest
http://phaseit.net/claird/comp.lang.tcl/
Cetus Links maintains a Tcl/Tk page with verified links
http://www.cetus-links.org/oo_tcl_tk.html
Google Groups archives comp.lang.tcl.announce posts
http://groups.yahoo.com/group/tcl_announce/
Previous - (U)se the (R)esource, (L)uke! - messages are listed here:
http://www.ddj.com/topics/tclurl/
An alternative is
http://groups.google.com/groups?oi=djq&as_q=+Tcl-URL&as_ugroup=comp.lang.tcl
Suggestions/corrections for next week's posting are always welcome.
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